Analyzing Histograms and Frequency Tables

The video tutorial covers the basics of histograms and frequency tables. It explains how to interpret numeric data using histograms, defines frequency and mode, and demonstrates how to fill a frequency table from a histogram. The tutorial also guides viewers on creating a histogram from a frequency table and analyzing data to answer questions about student ages and frequencies.

What does 'frequency' in a histogram represent?

• The width of each bar

• How often a data point occurs

• The range of data values

• The height of each bar

What is the mode in a set of data?

• The least occurring value

• The most frequently occurring value

• The middle value

• The average value

How is a histogram different from a bar graph?

• Histograms can only show numerical data

• Bar graphs do not show frequencies

• Histograms use lines instead of bars

• Bar graphs categorize data in non-sequential order

How do you find the percentage of a category in a frequency table?

• Subtract the category's frequency from the total frequencies

• Multiply the category's frequency by 100

• Divide the category's frequency by the total frequencies

• Add all frequencies and divide by the number of categories

What age range had the highest frequency in the student histogram?

• 5 to 6 years

• 7 to 8 years

• 9 to 10 years

• 11 to 12 years

How many students were younger than 9 years old?

• 20 students

• 35 students

• 45 students

• 60 students

What fraction of students are aged 7 to 8 years?

• 1/4

• 1/3

• 3/12

• 15/60

How many students are older than 8 years?

• 25 students

• 25 students

• 35 students

• 12 students

What fraction of the students are ages 5 to 6?

• 2/5

• 1/4

• 1/3

• 1/2

How many students attend this elementary school?

• 50 students

• 80 students

• 70 students

• 60 students